Kathe Sheehan has a picture-perfect circular garden in her backyard. A pond with koi fish, arbors covered in flowers, winding paths and beautiful bushes and "a million kinds of hostas," Sheehan says, laughing. It doesn't hurt that there's a swimming pool and a patio behind it, either.This garden is around 25 years old; Sheehan and her late husband worked on it with love and care, slowly augmenting it to what it is now.